Make the causal loop diagram for the following situation:

Today, approximately 2 million spruce trees stand in the Hardwood forest. A logging company has been chopping and harvesting approximately 100,000 each year. An environmental group, concerned that the forest will be entirely destroyed, has been hard at work planting as many new fir trees as possible. They have been able to plant approximately 5,000 each month. However, they know that this effort is not enough to ensure the survival of the forest.